Least Common Multiple (LCM) of 77 and 163
The least common multiple (LCM) of 77 and 163 is 12551.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 77 and 163?
First, calculate the GCD of 77 and 163 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 163 = 0 remainder 77 |
| 2 | 163 ÷ 77 = 2 remainder 9 |
| 3 | 77 ÷ 9 = 8 remainder 5 |
| 4 | 9 ÷ 5 = 1 remainder 4 |
| 5 | 5 ÷ 4 = 1 remainder 1 |
| 6 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 147 and 157 | 23079 |
| 199 and 79 | 15721 |
| 108 and 42 | 756 |
| 129 and 32 | 4128 |
| 67 and 200 | 13400 |